Like pieces on a chess board, centrist parties lose ground as they accommodate rather than challenge far-right agendas — socialists must play things better, warns MATT KERR
Mass insulation meets the Jevons Paradox
A planned carbon capture storage plant sits uneasily alongside continued inaction on home insulation — how can we make sure any new ‘efficiency’ does not lead to greater consumption — and should we, ask ROX MIDDLETON, LIAM SHAW and JOEL HELLEWELL

IN 1865, the English economist William Stanley Jevons wrote a book called The Coal Question. In it, he considered a paradoxical fact about technological progress.
One might assume that increases in the efficiency of burning coal would mean that there would be a corresponding reduction in its use because less was needed to achieve the same aims. But as Jevons noted, “it is wholly a confusion of ideas to suppose that the economical use of fuel is equivalent to a diminished consumption. The very contrary is the truth.”
The Jevons Paradox states that increases in efficiency lead to increases in demand. A century-and-a-half later, it remains depressingly relevant.
More from this author

A small Japanese trial has reported some positive results for stem cell therapy to treat spinal-cord injuries

Man-made canals like Panama and Suez face unprecedented challenges from extreme weather patterns and geopolitical tensions that reveal the fragility of our global trade networks, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT

It’s sunny times for the solar industry which is expected to continue to grow rapidly — but there are still major environmental issues with how solar cells are made, explain ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT

Fraud in Alzheimer’s research raises difficult questions about the current state of science, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT